Give the Focus, Directrix, and Axis for the Parabola $$x ^ { 2 } = 4 y$$

question 64

Multiple Choice

Give the focus, directrix, and axis for the parabola.
- $$x ^ { 2 } = 4 y$$

• A) \(( 1,0 ) , y = 1 , y\)-axis
• B) \(( 1,0 ) , x = 1 , x\)-axis
• C) \(( 0,1 ) , y = - 1 , y\)-axis
• D) \(( 0 , - 1 ) , x = - 1 , x\)-axis

Understand how supply and demand functions determine the equilibrium price and quantity in a market.

Analyze the impact of government interventions such as price floors, taxes, and price ceilings on market equilibrium.

Understand and calculate the elasticity of demand and supply and its implications on market behavior.

Analyze the impact of external changes to demand or supply, such as changes in consumer preferences or technological improvements.

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Definitions:

Hypotheses Testing

A method of statistical inference that is used to decide whether the data at hand sufficiently support a particular hypothesis.

Senatorial Election

A political process through which individuals are elected to represent a state or equivalent entity in the senate.

Expected Value

The average of all possible outcomes of a random variable, weighted by their respective probabilities.

Sample Proportions

Statistics used to estimate the fraction or percentage of a population that exhibits a particular characteristic, based on a sample.